Women in the first menstruation vaginal bleeding time may be slightly longer, will be in about 5-10 days time, because women in the first menstruation uterine lining is thicker, especially due to the inexperience may be in the diet of eating cold food or tired, study stress and other situations, may also lead to bleeding time is long. You should pay attention to proper rest, keep your mood relaxed, do not be too nervous, too much pressure, dietary attention to eat more hot food, but also to eat appropriate food containing protein, vitamins, minerals, is conducive to the supplementation of nutrients. Also pay attention to keep the vulva clean and hygienic, underwear should be clean, to avoid the occurrence of local vulvar and vaginal infections, women’s first menstruation proves that the ovaries have the function of secretion of estrogen and progesterone, and the development of the reproductive system is normal.